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981342 = 233171069
BaseRepresentation
bin11101111100101011110
31211212011000
43233211132
5222400332
633011130
711225025
oct3574536
91755130
10981342
1161032a
123b3aa6
1328489b
141b78bc
15145b7c
hexef95e

981342 has 32 divisors (see below), whose sum is σ = 2311200. Its totient is φ = 307584.

The previous prime is 981319. The next prime is 981373. The reversal of 981342 is 243189.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 981342.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384 + ... + 1452.

It is an arithmetic number, because the mean of its divisors is an integer number (72225).

2981342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 981342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1155600).

981342 is an abundant number, since it is smaller than the sum of its proper divisors (1329858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

981342 is a wasteful number, since it uses less digits than its factorization.

981342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097 (or 1091 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 981342 is about 990.6270741303. The cubic root of 981342 is about 99.3741580562.

The spelling of 981342 in words is "nine hundred eighty-one thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 17 18 27 34 51 54 102 153 306 459 918 1069 2138 3207 6414 9621 18173 19242 28863 36346 54519 57726 109038 163557 327114 490671 981342